green leaves 6 to 7 inches long, lanceolate and tapering to a point. The flower 
spike rises from the base of the bulbs, and bears two or three flowers each about 2 
inches across. Sepals and petals creamy white on the outside, but the petals are 
banded and mottled with royal-purple stripes on the inside. Lip three-lobed, velvety 
white, ridged, the side lobes being spotted and lined with purple; the middle 
lobe, semi-circular in shape, is striped and veined with deep purple. Flowers in 
midsummer and blooms last 4 to 5 weeks in good condition. 
Zygopetalum jugosum is found on the forest trees along the banks of the Rio Negro, 
Northern Brazil. It should be grown in pots in a compost of good fibre (todea, 
osmunda, or good peat) with a topping of live sphagnum moss. The climate in 
which it grows is warm and moist for the greater part of the year. Zygopetalum 
jugosum, therefore, needs to be grown in a glasshouse in Sydney and in the colder 
parts of Brisbane, and places in the cooler altitudes; and it will be desirable to give 
it heat in the Winter months. In the North, and in other warm places, bushhouse 
treatment will serve, providing the Winter temperature does not fall below about 
48° to. 50°—when a glasshouse will be desirable. Water must be plentifully supplied 
during the warm months, but very little should be given during the resting period. 
See that the drainage is perfect. Syn: Colax jugosus. 
ZYGOPETALUM MACKAYI. Native of Brazil. 
Probably the most popular of all the Zygopetalums. It has large, ovate, scarred 
pseudobulbs 2 to 3 inches high and wrinkled when old. They carry three to five 
lanceolate leaves 18 inches in length and about 14 inches wide. Flower scape 
carries five to seven flowers, similar in colouring to those of Z. intermedium, but 
with a smaller, hairless, glossy lip. The flowers themselves are smaller but more 
brightly coloured than Z. intermedium. Flowers in Winter and lasts eight to nine 
weeks. 
ZYGOPETALUM MAXILLARE. Native of Brazil. 
This handsome species has ovate-oblong pseudobulbs 2 to 3 inches long and 
slightly compressed, topped with a pair of narrow, lanceolate, prominently veined 
leaves about a foot long and an inch in width, but narrower at the base. The 
scapes, which grow from the bottom of the matured pseudobulbs, bear up to 
eight handsome flowers from 14 to 24 inches across, with sepals and narrower 
petals green with large blotches of brown. Lip is roundish in front, narrowed at 
the base, over an inch wide at the broadest part, and a purplish-blue in colour, 
the large, frilled, semi-circular crest being a darker shade. Flowers in Winter 
and lasts well. This species grows on the trunks of tree ferns on the slopes of the 
Organ Mountains in Brazil at an elevation of from 4,000 to 5,000 feet. 
Var. Gautieri—Syn. Zyg. Gautieri (q.v.). 
ZYGOPETALUM ROSTRATUM. Native of Guiana. 
This species grows from a creeping rhizome from which spring ovate-oblong, 
flattened pseudobulbs 2 inches long and with one or two leaves at the top, about 
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